<html>
<head>
    <title>{% block title %}缺省标题{% endblock %}</title>
    <style>
    table {
        border-collapse: collapse;
        width: 80%;
    }

    table,
    th,
    td {
        border: 1px solid black;
    }
    tr {
        height: 100px;
    }
    .menu {
        width: 15em;
    }
    </style>
</head>
<body>
    <table>
        <tr>
            <td colspan="2">header</td>
        </tr>
        <tr>
            <td class="menu">
                <a href="/home">Home</a><br>
                <a href="/list">List</a><br>
            </td>
            <td>{% block content %}{% endblock %}</td>
        </tr>
    </table>
</body>
</html>
